INTERMEDIATE PRECOAT LAYER FOR ENCAPSULATED ELECTRICAL DEVICE

摘要

An intermediate precoat layer is provided for encapsulated electrical devices such as solid electrolyte tantalum capacitors. The intermediate precoat layer contains a resin material selected from the group of acrylic, styrene, cellulose acetate. polyvinyl chloride and certain epoxy type materials. The intermediate precoat layer of the present invention helps to stabilize electrical characteristics in the electrical devices such as reducing the DC leakage current in solid electrolyte tantalum capacitors after encapsulation by a protective layer.